Releasing Memory

#1 Delete(%varaible); is used for objects, it might work with arrays as well.

#2 Anthony,

Good try, but nope, delete() nor deleteVariable() work for just simple variables.

To give a better description, here is what I want:

$myVariable = "myValue";
echo("myVariable is" SPC $myVariable);
do something to delete variable (not just clear it)
echo("myVariable is" SPC $myVariable);

The first echo should show "myVariable is myValue" and the second echo should show "myVariable is ".

Any ideas?

Thanks.

P.S. as another solution, I have a table of information in a text file. I am pulling it in and providing user selectable options in multiple places. Then when done, I want to delete it all. Is there a structure that will let me do that?

#3 Did you put quotes around it?

deleteVariable("$myVariable");

That works for me, it removed mine in my code.

#4 Steve,

No, I didn't try it with the quotes (everything else though :) It works on simple variable names beautifully.

Any suggestions for variables like this?

$myVariable[%n] or $myVariable[1]

Thanks.

#5 @Derk: I haven't tried this but I believe that variables such as $myVariable[1] are the same as $myVariable1 so you could try deleteVariable("$myVariable1") and maybe deleteVariable("$myVariable"@%n) may work too although I'm completely guessing here. Worth a try.

- Melv.

#6 Melv,

Ah, that was the piece I was missing. Both ways work.

Thanks.

#7 Cool. Didn't actually know if that would work so we've both learnt something today. :)

- Melv.

#8 Set them up as such. $My::Varible[#] then do deleteVaribles($My::); This will whipe them all in one call.

#9 Ralph,

I assume you meant to type deleteVariables($My::); and it works beautifully.

Thanks.

#10 Update.

deleteVariables($My::); doesn't work, it gives a script error and deleteVariables("$My::"); doesn't error, but doesn't work either.

Any ideas?

#11 Based on a real quick scan of the underlying C++ code, try it without the $ in front. deleteVariables appears to only work on global variables, therefore the $ would be redundant to save as part of the variable name in the hashtable. Just a guess, but it does look like this may solve your issue.

In other words, try: deleteVariables("My::");

#12 I used deleteVariables("$My::*") and it worked.

#13 Stephen,

It doesn't work without the dollar sign and without the star, although it doesn't throw an error.

Jacob, I see you caught the second quote :)

deleteVariables("$My::*") WORKS.

Thanks everyone, this will make a lot of my programming much easier.

#14 I found the following works fine for me.

$arrayNLPlayerList[0]=0;
$arrayNLPlayerList[1]=1;
$arrayNLPlayerList[2]=2;
deleteVariables("$arrayNLPlayerList*");

Deletes the array and all elements.

#15 Or put them into an object which you delete:

function newplayer(%name) {
  // Create the player list if it doesn't exist
  if(!isObject(NLPlayerList)) {
    new ScriptObject(NLPlayerList);
    NLPlayerList.numplayers = 0;
  }

  // Add player to list
  NLPlayerList.Player[NLPlayerList.numplayers] = %name;
  NLPlayerList.numplayers++;
}

function clearplayers() {
  // Bye Bye
  if(isObject(NLPlayerList)) {
    NLPlayerList.delete();
  }
}

Then just do stuff like:

// Populate some players
newplayer("John");
newplayer("Paul");
newplayer("George");
newplayer("Ringo");
...


// Add list of names to GUI object
for(%i=0; %i<NLPlayerList.numplayers; i++) {
  MyGuiControl.AddField(NLPlayerList.Player[%i]);
}

// Delete players
clearplayers();

Gary (-;

#16 Yes you can use a script object as a sort of array. Many ways to delete vars but I think as I posted is the best method although apparently I forgot to put the astrik at the end.

$Var::MyVar[0] = "foo";
$Var::MyVar[1] = "foobar";
deleteVaribles("$Var::*");

or this method

for (%i = 0; $Var::MyVar[%i] !$= ""; %i++)
$Var::MyVar[%i] = "";

$ScriptObject = new ScriptObject(MyScriptObject) {
Var[0] = "foo";
Var[1] = "foobar";
};

$ScriptObject.delete();